3.4 编写一个程序，将用户输入的数字（0～6）转换成相应的星期值输出。如用户输 入 3，则程序输出“Today is Wed”；用户输入 0，则输出“Today is Sun”。如果用户输入 的数据

/*

3.4 编写一个程序，将用户输入的数字（0～6）转换成相应的星期值输出。如用户输

入 3，则程序输出“Today is Wed”；用户输入 0，则输出“Today is Sun”。如果用户输入

的数据不合法，则输出“I don’t know what you mean!”。*/

#include <iostream>

using namespace std;

void main()

{
char num = 0;
cin >> num;
//scanf_s("%d", &num)
if (num)
switch (num)
{
case 1:cout << "Today is Mon" << endl; break;

case 0:cout << "Today is Sun" << endl; break;
case 2:cout << "Today is Tue" << endl; break;
case 3:cout << "Today is Wed" << endl; break;
case 4:cout << "Today is Thu"<< endl;  break;
case 5:cout << "Today is Fri" << endl; break;
case 6:cout << "Today is Sat" << endl; break;
default:cout << "I don't know what you mean!" << endl;

}
system("pause");

}